Author: avg
Date: Thu Sep  8 12:24:46 2016
New Revision: 305603
URL: https://svnweb.freebsd.org/changeset/base/305603

Log:
  intpm: do not try attaching to unsupported controller revisions
  
  While there set a different device description for the controllers
  found in various FCHs (Hudson, Bolton, CPU integrated).
  
  MFC after:    1 week

Modified:
  head/sys/dev/intpm/intpm.c

Modified: head/sys/dev/intpm/intpm.c
==============================================================================
--- head/sys/dev/intpm/intpm.c  Thu Sep  8 12:12:39 2016        (r305602)
+++ head/sys/dev/intpm/intpm.c  Thu Sep  8 12:24:46 2016        (r305603)
@@ -104,9 +104,12 @@ intsmb_probe(device_t dev)
                device_set_desc(dev, "ATI IXP400 SMBus Controller");
                break;
        case 0x43851002:
-       case 0x780b1022:        /* AMD Hudson */
-               device_set_desc(dev, "AMD SB600/7xx/8xx SMBus Controller");
-               /* XXX Maybe force polling right here? */
+               device_set_desc(dev, "AMD SB600/7xx/8xx/9xx SMBus Controller");
+               break;
+       case 0x780b1022:        /* AMD FCH */
+               if (pci_get_revid(dev) < 0x40)
+                       return (ENXIO);
+               device_set_desc(dev, "AMD FCH SMBus Controller");
                break;
        default:
                return (ENXIO);
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